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rewona [7]
3 years ago
10

You can ride your bike around your block twice and the whole neighborhood once in 10 minutes. You can ride your bike around your

block twice and the whole neighborhood 4 times in 31 minutes. How long does it take you to ride around the neighborhood?
Mathematics
1 answer:
pashok25 [27]3 years ago
3 0

Answer:

7 minutes

Step-by-step explanation:

okay so lets make blocks = x and neighborhood = y

2x + y =10

2x + 4y = 31

multiply the top equation by -1 so we can single out y

-2x - y = -10

2x + 4y = 31

combine the two equations

3y = 21

since the x's have canceled each other out, just divide both sides by 3 to get a single y

y = 7

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nlexa [21]

\text{Hey there!}

\bf{-7\times(4+(-5))}

\bf{First, you\ need\ to\ do \ is\ PEMDAS}\\\\\\\text{Parentheses, Exponents, Multiplication, Division,Addition\ \& Subtraction}

\bf{ -7\times3(4+(-5))}\\\bf{-7\times3=-21}\\\bf{-21(4+(-5))}\\\bf{4+(-5)= -1}\\\bf{-21\times-1=21}\\\\\boxed{\boxed{\bf{Answer: 21}}}\checkmark

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6 0
3 years ago
Read the screenshot, please.
hram777 [196]

Answer:

You need <em>at least</em> 101 cans of food in order to meet or surpass the goal.

Step-by-step explanation:

a.

135+89=224

224+c>=325

b.

224-224+x>=325-224

x>=101

You need <em>at least</em> 101 cans of food in order to meet or surpass the goal.

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1 year ago
Which one is correct for this question need help please
emmainna [20.7K]

Answer:

A is correct, 7 units. Hope this helps! :)

5 0
2 years ago
Please help asap 50 pts
kozerog [31]
I believe the answer is C. If you were to plug in 1 for t, you would get h=22. Thus, the max height is 22 feet, and the time it took to get there was 1 second.
7 0
3 years ago
Read 2 more answers
Which equation represents the formula for the general term, gn, of the geometric sequence 3, 1, 1/3, 1/9, . . .?
dedylja [7]

Answer:

Explicit form: g_n=3(\frac{1}{3})^{n-1}

Recursive form: g_n=\frac{1}{3}g_{n-1} with g_1=3.

Step-by-step explanation:

The first term is 3 and we are dividing by 3 each time.

Another way to say we are dividing by 3 each time is to say we are multiplying by factors of 1/3.

If the first term is a and r is the common ratio then the geometric sequence in explicit form is:

a_n=a(r)^{n-1}

g_n=3(\frac{1}{3})^{n-1}

The recursive form for a geometric sequence is a_n=ra_{n-1} with a_1=a where r is the common ratio and a is the first term.

So the recursive form for our sequence is g_n=\frac{1}{3}g_{n-1} with g_1=3.

6 0
2 years ago
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